21057264

素因数分解:

$2^4\times 3^2\times {\mathrm{349}}^1\times {\mathrm{419}}^1$

素因数の和:782

約数の個数: 60

約数和(自身を含む): 59241000

約数和(自身を除く): 38183736

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 349, 419, 698, 838, 1047, 1257, 1396, 1676, 2094, 2514, 2792, 3141, 3352, 3771, 4188, 5028, 5584, 6282, 6704, 7542, 8376, 10056, 12564, 15084, 16752, 20112, 25128, 30168, 50256, 60336, 146231, 292462, 438693, 584924, 877386, 1169848, 1316079, 1754772, 2339696, 2632158, 3509544, 5264316, 7019088, 10528632, 21057264]

約数ペア:

[(1, 21057264), (2, 10528632), (3, 7019088), (4, 5264316), (6, 3509544), (8, 2632158), (9, 2339696), (12, 1754772), (16, 1316079), (18, 1169848), (24, 877386), (36, 584924), (48, 438693), (72, 292462), (144, 146231), (349, 60336), (419, 50256), (698, 30168), (838, 25128), (1047, 20112), (1257, 16752), (1396, 15084), (1676, 12564), (2094, 10056), (2514, 8376), (2792, 7542), (3141, 6704), (3352, 6282), (3771, 5584), (4188, 5028)]